package com.tao.super_;

public class A {
    public int n1 = 100;
    protected int n2 =200;
    int n3 = 300;
    private int n4 = 400;
    public void test100(){
    }
    protected void test200(){
    }
    void test300(){
    }
    private void test400(){
    }
    public void cal(){
        System.out.println("父类A的cal方法");
    }
}
